When did the earth come into existence?
When did the earth come into existence?
Ans: –4 to 5 million years age earth come into existence.
Why did life not exist on primitive earth?
Ans: – Because of the harsh climatic condition.
What are fossils?
Ans: – Remaining of the body parts of the animal and plant dumping under earth through million of years.
What is meant by Cambrain explosion?
Ans: – 600 million years ago sudden formation of different groups of invertebrates on the earth took place is known as Cambrain explosion.
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